Watch List notes:

Antoninus Pius (138-161), Denarius, Rome, AD 145-161; AR (g 3,27; mm 17; h 7); ANTONINVS - AVG PIVS P P, laureate head r., Rv. COS - IIII, clasping hands, holding corn ears and caduceus. RIC 136; C 344.
Portrait in high relief, extremely fine.